Depression and Addiction

Depression and substance use disorders often occur together. The relationship can be complicated: some people use alcohol or drugs while trying to cope with low mood, sleep problems, emotional pain, or hopelessness; substance use can also worsen mood symptoms or produce symptoms that resemble depression during intoxication or withdrawal. Shared factors such as stress, trauma, genetics, and other health conditions can contribute to both.

This is why treatment should not start with the assumption that one problem is simply causing the other. A careful evaluation looks at both conditions, how symptoms change during periods of substance use or abstinence, current medications, medical conditions, safety risks, and the person’s daily environment.

The Substance Abuse and Mental Health Services Administration uses the term co-occurring disorders when a person has both a mental health disorder and a substance use disorder. SAMHSA recommends integrated care because treating both conditions together can improve coordination and help reduce gaps between mental health and addiction services.

When depression needs urgent attention

Depression can involve persistent sadness, emptiness, irritability, hopelessness, loss of interest, fatigue, sleep or appetite changes, difficulty concentrating, feelings of worthlessness, and thoughts of death or suicide. Symptoms vary from person to person, and substance intoxication or withdrawal can complicate what a person is feeling.

If someone is in immediate danger, has attempted suicide, cannot be kept safe, is severely confused, is having a seizure, is not breathing normally, or may have overdosed, call 911 or seek emergency medical care. If someone is experiencing suicidal thoughts, severe emotional distress, or a mental health or substance-use crisis, call or text 988 for the Suicide & Crisis Lifeline. A crisis involving a possible overdose still requires emergency medical attention.

If opioid exposure is possible in an overdose and naloxone is available, administer it while calling 911. Naloxone reverses opioid effects but does not reverse alcohol, benzodiazepine, stimulant, or other non-opioid effects.

How depression and substance use can affect each other

There is no single pathway that explains every case. A person may begin using alcohol or another drug to temporarily change mood, reduce anxiety, sleep, feel energized, or escape painful thoughts. Over time, repeated use can create additional problems with sleep, relationships, work, finances, physical health, and emotional regulation.

The reverse relationship also matters. Alcohol and many drugs can affect mood directly, and withdrawal from some substances can produce depression, anxiety, agitation, sleep disruption, or fatigue. Stimulant withdrawal, for example, can involve depressed mood and severe fatigue. Alcohol and sedative withdrawal can be medically dangerous. Opioid withdrawal is usually not fatal by itself, but the period after reduced use can increase overdose risk if a person returns to an amount they previously tolerated.

Because symptoms can overlap, clinicians may need time and repeated assessment to determine whether depressive symptoms are part of a primary depressive disorder, are substance-induced, or reflect both conditions. That distinction affects treatment planning, but a person does not have to wait for perfect diagnostic certainty before receiving support for safety, substance use, and severe mood symptoms.

What a complete assessment should cover

A useful assessment looks beyond a single diagnosis. It commonly reviews:

• Depressive symptoms, how long they have lasted, and how they affect daily functioning
• Suicidal thoughts, self-harm history, prior attempts, and immediate safety concerns
• Every substance used, including alcohol, opioids, stimulants, cannabis, sedatives, prescription medicines, and over-the-counter products
• Amount, frequency, route of use, and time of last use
• Past withdrawal symptoms, seizures, delirium, or medically complicated withdrawal
• Previous overdoses and naloxone use
• Current prescription medications and possible interactions
• Sleep, appetite, pain, pregnancy status when relevant, and other medical conditions
• Trauma history and symptoms of anxiety, bipolar disorder, psychosis, or other mental health conditions
• Housing, family support, transportation, work, legal concerns, and access to continuing care

A provider may also evaluate whether a medical condition or medication could be contributing to depressive symptoms. The National Institute of Mental Health notes that some medical conditions and medications can produce symptoms similar to depression, which is one reason a comprehensive medical and mental health assessment can be important.

Integrated treatment addresses both conditions

Treating depression while ignoring substance use can leave major risks unaddressed. Treating substance use while ignoring severe depression can do the same. Integrated care brings mental health and substance use treatment together through coordinated assessment, therapy, medication management, recovery support, and safety planning.

SAMHSA describes coordinated, co-located, and fully integrated models of care. The exact structure varies, but the goal is the same: people should not have to bounce between disconnected systems while each program assumes the other problem will be handled somewhere else.

Integrated treatment can be delivered in outpatient, intensive outpatient, residential, hospital, or other settings depending on safety, withdrawal risk, psychiatric stability, medical needs, and the person’s living environment.

Therapy for depression and substance use

Psychotherapy is a common treatment for depression and can also be part of substance use disorder care. Cognitive behavioral therapy can help people identify patterns in thoughts, emotions, behaviors, and substance use. Motivational interviewing can help a person explore ambivalence about change. Relapse-prevention work can identify triggers and build practical plans for high-risk situations.

Therapy should also address the reasons a person uses substances. If alcohol is being used to sleep, stimulants are being used to get through the day, or opioids are being used to numb emotional pain, those functions need to be understood rather than dismissed. A treatment plan may include sleep treatment, pain care, trauma-focused work when appropriate, family support, or practical help with housing and employment.

Medications may be part of care

Depression treatment commonly includes psychotherapy, medication, or both. Antidepressants are one treatment option, and medication decisions should consider the person’s substance use, other prescriptions, medical conditions, past response, and risk of interactions.

A person should not stop a prescribed antidepressant suddenly or change the dose without discussing it with the prescriber. Some antidepressants can cause discontinuation symptoms when stopped abruptly, and treatment plans may need to be adjusted gradually.

For opioid use disorder, medications such as buprenorphine, methadone, and naltrexone can be part of treatment. Medications are also available for alcohol use disorder. Treating a substance use disorder with an evidence-based medication is not replacing one addiction with another; these medications are used as part of structured treatment to reduce harms and support recovery.

Medication management is especially important when sedating substances are involved. Mixing opioids with benzodiazepines, alcohol, or other central nervous system depressants can increase the risk of severe sedation and respiratory depression. Prescribers should know about all substances and medications a person is taking.

Withdrawal and detox safety

Not every person with depression and substance use needs medically managed withdrawal care, but some do. Alcohol and benzodiazepine withdrawal can be life-threatening and may cause seizures or delirium. People with possible physical dependence on these substances should not abruptly stop on their own without medical guidance.

Withdrawal risk also depends on the combination of substances, the amount and duration of use, prior withdrawal history, current health, and other medications. A person with severe depression, suicidal thoughts, psychosis, unstable medical conditions, or a history of dangerous withdrawal may need a higher level of care.

“Detox” is only the beginning of treatment. Withdrawal management can address immediate medical risk, but continuing treatment is usually needed to address the substance use disorder, depression, relapse risk, and the conditions that make recovery harder to sustain.

Choosing a level of care

The right setting depends on risk and functioning rather than diagnosis alone. Outpatient treatment may be appropriate when the person is medically stable, withdrawal risk is low, safety can be maintained, and there is reliable support and transportation.

A higher level of care may be appropriate when there is severe withdrawal risk, repeated overdose, inability to stay safe, severe suicidal thinking, psychosis, major medical instability, an unsafe home environment, or repeated return to use despite lower-intensity treatment.

Treatment intensity can change over time. Moving from outpatient care to a higher level of care is not a failure, and stepping down after stabilization does not mean care is finished. The goal is to match support to current needs.

Recovery after the most intensive treatment ends

Depression and substance use disorders can both recur, so continuing care matters. A recovery plan may include therapy, medication appointments, peer support, recovery housing, primary care, exercise or sleep routines, family support, and practical help with transportation or employment.

A return to substance use should trigger reassessment rather than shame. Likewise, worsening depression should prompt renewed evaluation rather than an assumption that treatment has failed. Plans can be changed as symptoms, risks, and circumstances change.

Finding help

FindTreatment.gov is a federal treatment locator for mental health and substance use services in the United States and its territories. When contacting a program, ask whether it treats co-occurring mental health and substance use disorders, how it handles medication management, whether it can manage withdrawal safely, and what happens if depression or suicidal thinking worsens during treatment.

For a mental health or substance-use crisis, call or text 988. For an overdose, seizure, severe confusion, breathing problem, suicide attempt, or other immediate medical emergency, call 911.

Frequently Asked Questions

Can depression cause addiction?

Depression can increase vulnerability to substance misuse for some people, but it is not accurate to say that depression always causes addiction. Mental health and substance use disorders can share risk factors, and the relationship differs from person to person.

Can alcohol or drugs cause depression?

Some substances can worsen mood or cause depressive symptoms during intoxication, chronic use, or withdrawal. A clinician may need to evaluate symptoms over time to determine whether depression is substance-induced, a separate depressive disorder, or both.

Should depression or addiction be treated first?

When both conditions are present, integrated treatment is generally preferred. Immediate safety issues such as overdose, dangerous withdrawal, or suicidal risk are addressed first, while treatment planning also considers both the mental health and substance use disorders.

Are antidepressants safe for people in addiction treatment?

They can be appropriate for many people, but the choice depends on the person’s health, substances used, current medications, and diagnosis. Medication decisions should be made with a prescriber who knows the full substance-use and medication history.

What if depression gets worse during recovery?

Contact the treatment team or another health care provider promptly. If suicidal thoughts or a crisis develops, call or text 988. If there is immediate danger, an overdose, severe withdrawal, or a suicide attempt, call 911.

Sources

1. SAMHSA, Co-Occurring Disorders and Other Health Conditions: https://www.samhsa.gov/substance-use/treatment/co-occurring-disorders
2. SAMHSA, Screening and Treatment of Co-Occurring Disorders: https://www.samhsa.gov/mental-health/serious-mental-illness/co-occurring-disorders
3. NIMH, Finding Help for Co-Occurring Substance Use and Mental Disorders: https://www.nimh.nih.gov/health/topics/substance-use-and-mental-health
4. NIMH, Depression: https://www.nimh.nih.gov/health/publications/depression
5. SAMHSA, Substance Use Disorder Treatment: https://www.samhsa.gov/substance-use/treatment
6. SAMHSA, Treatment Locators / FindTreatment.gov: https://www.samhsa.gov/find-help/locators
7. 988 Suicide & Crisis Lifeline: https://988lifeline.org/
8. FDA, Depression Medicines: https://www.fda.gov/consumers/womens-health-topics/depression-medicines